[PATCH 2/6] drm/bridge: tc358767: filter out too high modes

[Philipp Zabel]

On Thu, 2017-07-27 at 15:47 +0300, Andrey Gusakov wrote:
> Minimum pixel clock period is 6.5 nS for DPI. Do not accept  modes
> with lower pixel clock period.
> 
> Signed-off-by: Andrey Gusakov <andrey.gusakov at cogentembedded.com>
> ---
>  drivers/gpu/drm/bridge/tc358767.c | 5 ++++-
>  1 file changed, 4 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/gpu/drm/bridge/tc358767.c b/drivers/gpu/drm/bridge/tc358767.c
> index f605bb7d1aa3..e8008e0c2e88 100644
> --- a/drivers/gpu/drm/bridge/tc358767.c
> +++ b/drivers/gpu/drm/bridge/tc358767.c
> @@ -1103,7 +1103,10 @@ static bool tc_bridge_mode_fixup(struct drm_bridge *bridge,
>  static int tc_connector_mode_valid(struct drm_connector *connector,
>  				   struct drm_display_mode *mode)
>  {
> -	/* Accept any mode */
> +	/* PCLK limitation = 6.5 nS */
> +	if (mode->clock > 163000)
> +		return MODE_CLOCK_HIGH;

The comment doesn't match the code. If the limit is 6.5 nS, shouldn't
that be
	if (mode->clock > 153846)
?

regards
Philipp